Karym1478 Karym1478
  • 16-05-2019
  • Mathematics
contestada

f(x)=(3x-1)/(2) find f^(-1)(2)

Respuesta :

19allenethm
19allenethm 19allenethm
  • 16-05-2019

Answer:

[tex]f^{-1} (2)=\frac{5}{3}[/tex]

Step-by-step explanation:

To find the inverse of a function, we must replace y for x and then solve for y.

[tex]y=\frac{3x-1}{2} \\x=\frac{3y-1}{2} \\2x=3y-1\\3y=2x+1\\y=\frac{2x+1}{3} \\f^{-1} (x)=\frac{2x+1}{3}[/tex]

Now we can substitute x=2 into our inverse function

[tex]f^{-1} (2)=\frac{2(2)+1}{3} \\f^{-1} (2)=\frac{5}{3}[/tex]

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